Just a question to all the boaties that venture into the 100's of metres of water. How did you go about finding your ground? Is there charts that show ground in the deep water or has it been hours of sounding around to come across a pin head on the sea floor? I've got a Fraser 5.25 and often get 40km out from Point Perron but would love to catch some of the whoppers that come up from time to time on the forums. Some of the ground that I fish on has been found by pure luck and if it is this method that is used to come across the deep stuff, then I'll have to take out some jerry cans with me and start looking.